| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 60/87] seccomp: Use PR_SPEC_FORCE_DISABLE | Date | Mon, 21 May 2018 23:11:36 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Thomas Gleixner <tglx@linutronix.de>
commit b849a812f7eb92e96d1c8239b06581b2cfd8b275 upstream
Use PR_SPEC_FORCE_DISABLE in seccomp() because seccomp does not allow to widen restrictions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- kernel/seccomp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/seccomp.c +++ b/kernel/seccomp.c @@ -226,7 +226,7 @@ static inline void spec_mitigate(struct int state = arch_prctl_spec_ctrl_get(task, which); if (state > 0 && (state & PR_SPEC_PRCTL)) - arch_prctl_spec_ctrl_set(task, which, PR_SPEC_DISABLE); + arch_prctl_spec_ctrl_set(task, which, PR_SPEC_FORCE_DISABLE); } static inline void seccomp_assign_mode(struct task_struct *task,
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